Book Image

Voice User Interface Projects

By : Henry Lee
Book Image

Voice User Interface Projects

By: Henry Lee

Overview of this book

From touchscreen and mouse-click, we are moving to voice- and conversation-based user interfaces. By adopting Voice User Interfaces (VUIs), you can create a more compelling and engaging experience for your users. Voice User Interface Projects teaches you how to develop voice-enabled applications for desktop, mobile, and Internet of Things (IoT) devices. This book explains in detail VUI and its importance, basic design principles of VUI, fundamentals of conversation, and the different voice-enabled applications available in the market. You will learn how to build your first voice-enabled application by utilizing DialogFlow and Alexa’s natural language processing (NLP) platform. Once you are comfortable with building voice-enabled applications, you will understand how to dynamically process and respond to the questions by using NodeJS server deployed to the cloud. You will then move on to securing NodeJS RESTful API for DialogFlow and Alexa webhooks, creating unit tests and building voice-enabled podcasts for cars. Last but not the least you will discover advanced topics such as handling sessions, creating custom intents, and extending built-in intents in order to build conversational VUIs that will help engage the users. By the end of the book, you will have grasped a thorough knowledge of how to design and develop interactive VUIs.
Table of Contents (12 chapters)

Creating a webhook to handle Dialogflow

In the previous section, you successfully migrated the Henry's Kitchen Alexa skill to a Dialogflow agent. For the intents you created, you would need to fulfill the intents' requests from the Node.js server. You will be using the same Microsoft Azure App Service that you set up for handling the Alexa endpoint to also handle the Dialogflow webhook. Most of the code you wrote for the Alexa skill will be reused, but there is code that you must refactor in order to apply it to both Alexa skill requests and Dialogflow agent requests.

What code is reused?

Redis will be used for both Alexa and Dialogflow requests to maintain the conversational state. In the beginning of the code...